Note: this submission is a free version of OfficeDoc. All the important OfficeDoc features are included in this free version - the professional version (available on http://www.ymasoftware.com) allows extra formatting options.

Bugs and suggestions:
OfficeDoc was tested on Office 11 (XP) & Matlab 6.0 (R12) - 7.4 (R2007a), but might also work on earlier versions of Matlab & Office. Please report any incompatibilities or other bugs/suggestions to Yair Altman (altmany at gmail dot com).

Seems to very nice software but I have to agree with Stephane, it is not open source. With the demo version you do not get the same functionality as xlswrite (the option to adress the fields where one wants to write data to is not included)